at sandy hook, i'm john sasaki, ktvu news. >>> noah posey will be laid to rest tomorrow. his uncle said noah was smart as a whip. noah's twin sister and older sister were in different areas of sandy hook elementary school and survived friday's shooting. >>> the fbi is talking to those closest to adam lanza in an effort to try to piece together what led up to the shooting. federal officials are on the ground interviewing relatives and friends of the lanza family. they are also checking dozens of gun stores and shooting ranges in connecticut. police want to know why lanza's mother kept such high powered rifles and what kind of experience lanza had with her guns. there was a story that someone was impersonating lanza on facebook. police are also investigating that report. >>> lanza had been diagnosed with aspberger's syndrome. a ucla psychologist says there's no clear link between aspberger's and violent behavior. >> there will be no school in newtown and the nation will be reviewing and perhaps revamping security. ktvu's deborah villalon is live after asking officials what